A man or woman that is registered on an online dating site such as Match.com that has so many spelling and grammar mistakes in their profile that you suspect that they may be mentally retarded. Then you meet them for a date and they remove all doubt.
I met a woman that had so many mistakes in her profile that I felt compelled to point them out, telling her that guys like women who have nice profiles. She called me an @$$hole.
I told her "I meant you no ill will." She responded, "talk about your grammer, that sentance made no sence at all! lol "
She is a total Matchtard!